icon-generator（图标生成器）

Icon Generator

Professional icon and logo generator for apps, websites, and branding.

Features

• 📱 App Icons: iOS and Android standards
• 🌐 Web Icons: Favicon, OG images
• 🎨 Logo Design: Brand marks, wordmarks
• 📐 Multi-Size: Auto-export all required sizes
• 🎯 Customizable: Colors, shapes, styles

Supported Formats

iOS App Icons

Android App Icons

Web Icons

Trigger Conditions

• "Create app icon" / "生成App图标"
• "Make favicon" / "制作网站图标"
• "Generate logo" / "生成Logo"
• "icon-generator"

Icon Styles

1. Flat Icon

• Clean, minimal design
• Single color or gradient
• No shadows or effects
• Best for: Modern apps

2. Material Icon

• Google Material style
• Bold shapes
• Limited color palette
• Best for: Android apps

3. iOS Style

• Rounded square
• Subtle gradients
• Apple aesthetic
• Best for: iOS apps

4. 3D Icon

• Depth and shadows
• Realistic look
• Eye-catching
• Best for: Games, entertainment

5. Line Icon

• Outline only
• Minimal, clean
• Elegant
• Best for: Productivity apps

Python Code

from PIL import Image, ImageDraw, ImageFont
import os
import math

class IconGenerator:
    def __init__(self):
        self.ios_sizes = [
            ('AppStore', 1024),
            ('iPhone_3x', 180),
            ('iPhone_2x', 120),
            ('iPadPro', 167),
            ('iPad', 152),
            ('iPadSpotlight', 80),
            ('iPhoneSettings', 58),
            ('iPhoneNotification', 40),
        ]
        
        self.android_sizes = [
            ('PlayStore', 512),
            ('xxxhdpi', 192),
            ('xxhdpi', 144),
            ('xhdpi', 96),
            ('hdpi', 72),
            ('mdpi', 48),
        ]
        
        self.web_sizes = [
            ('PWA_512', 512),
            ('PWA_192', 192),
            ('AppleTouch', 180),
            ('Favicon_32', 32),
            ('Favicon_16', 16),
        ]
    
    def _load_font(self, size):
        paths = [
            '/System/Library/Fonts/PingFang.ttc',
            '/usr/share/fonts/truetype/noto/NotoSansCJK-Regular.ttc',
        ]
        for p in paths:
            if os.path.exists(p):
                try:
                    return ImageFont.truetype(p, size)
                except:
                    continue
        return ImageFont.load_default()
    
    def create_flat_icon(self, symbol, bg_color, symbol_color, size=(512, 512)):
        """Flat design icon"""
        img = Image.new('RGBA', size, (*bg_color, 255))
        draw = ImageDraw.Draw(img)
        
        font = self._load_font(size[0] // 3)
        bbox = draw.textbbox((0, 0), symbol, font=font)
        w, h = bbox[2] - bbox[0], bbox[3] - bbox[1]
        x, y = (size[0] - w) // 2, (size[1] - h) // 2
        
        draw.text((x, y), symbol, font=font, fill=(*symbol_color, 255))
        return img
    
    def create_material_icon(self, symbol, color, size=(512, 512)):
        """Material Design icon"""
        img = Image.new('RGBA', size, (0, 0, 0, 0))
        draw = ImageDraw.Draw(img)
        
        # Circular background
        margin = size[0] // 10
        draw.ellipse([(margin, margin), (size[0]-margin, size[1]-margin)], 
                     fill=(*color, 255))
        
        # Icon
        font = self._load_font(size[0] // 3)
        bbox = draw.textbbox((0, 0), symbol, font=font)
        w, h = bbox[2] - bbox[0], bbox[3] - bbox[1]
        x, y = (size[0] - w) // 2, (size[1] - h) // 2
        draw.text((x, y), symbol, font=font, fill=(255, 255, 255, 255))
        
        return img
    
    def create_ios_icon(self, symbol, bg_color, symbol_color, size=(1024, 1024)):
        """iOS style icon with rounded corners"""
        import numpy as np
        
        # Create base image
        img = Image.new('RGBA', size, (*bg_color, 255))
        draw = ImageDraw.Draw(img)
        
        # Add subtle gradient
        for y in range(size[1]):
            ratio = y / size[1]
            r = int(bg_color[0] * (1 - ratio * 0.2))
            g = int(bg_color[1] * (1 - ratio * 0.2))
            b = int(bg_color[2] * (1 - ratio * 0.2))
            draw.line([(0, y), (size[0], y)], fill=(r, g, b, 255))
        
        # Add symbol
        font = self._load_font(size[0] // 3)
        bbox = draw.textbbox((0, 0), symbol, font=font)
        w, h = bbox[2] - bbox[0], bbox[3] - bbox[1]
        x, y = (size[0] - w) // 2, (size[1] - h) // 2
        draw.text((x, y), symbol, font=font, fill=(*symbol_color, 255))
        
        return img
    
    def create_line_icon(self, path_points, color, size=(512, 512)):
        """Line/outline style icon"""
        img = Image.new('RGBA', size, (255, 255, 255, 255))
        draw = ImageDraw.Draw(img)
        
        if len(path_points) > 1:
            draw.line(path_points, fill=(*color, 255), width=max(2, size[0] // 50))
        
        return img
    
    def apply_rounded_corners(self, img, radius=None):
        """Apply iOS-style rounded corners"""
        if radius is None:
            radius = img.size[0] // 5
        
        mask = Image.new('L', img.size, 0)
        draw = ImageDraw.Draw(mask)
        draw.rounded_rectangle([(0, 0), img.size], radius=radius, fill=255)
        
        result = Image.new('RGBA', img.size, (0, 0, 0, 0))
        result.paste(img, mask=mask)
        return result
    
    def export_all_sizes(self, img, output_dir, platform='all'):
        """Export icon in all required sizes"""
        os.makedirs(output_dir, exist_ok=True)
        
        sizes = []
        if platform in ['ios', 'all']:
            sizes.extend(self.ios_sizes)
        if platform in ['android', 'all']:
            sizes.extend(self.android_sizes)
        if platform in ['web', 'all']:
            sizes.extend(self.web_sizes)
        
        exported = []
        for name, size in sizes:
            resized = img.resize((size, size), Image.LANCZOS)
            path = os.path.join(output_dir, f'icon_{name}_{size}x{size}.png')
            resized.save(path)
            exported.append(path)
        
        return exported

# Example
gen = IconGenerator()

# Create iOS icon
icon = gen.create_ios_icon('A', (30, 60, 114), (255, 255, 255))

# Apply rounded corners
icon = gen.apply_rounded_corners(icon)

# Export all sizes
gen.export_all_sizes(icon, 'output/')

Usage Examples

User: "Create an app icon for my note-taking app"
Agent: Generate icon with notebook symbol

User: "Make a favicon for my website"
Agent: Generate 32×32 and 16×16 icons

User: "Generate all icon sizes for iOS and Android"
Agent: Export 20+ sizes for both platforms

Notes

• All icons generated locally with Pillow
• Auto-export all required sizes
• Cross-platform compatible
• Supports Chinese and English symbols